Central Arizona DX Association


March Meeting

We are the largest ham radio DX club in Arizona with over 140 members, many of whom are on the ARRL's DXCC Honor Roll.  We have several members who have traveled to distant places to put "rare" countries on the air.  We encourage any ham interested in DXing to join our club and learn about the many aspects of talking to hams around the globe who share this amazing hobby with us.  Founded in 1974, we are an ARRL-affiliated club and a member club of the Amateur Radio Council of Arizona (ARCA).

Our next meeting will be on Thursday night, March 2nd at the PERA Club beginning at 7:00 pm.  The program will be presented by Lee, KY7M, and Ned, AA7A.  They will recount the story and many challenges of taking on the maintenance of the remotely operated Safford, AZ super station built by Milt Jensen, N5IA, who died in a tower accident last June.  The privilege of operating an 8-Circle of 160m towers in Safford requires a lot more effort than simply turning on a control radio in Phoenix.

Please come and join us for the meeting and feel free to arrive early to socialize with your peers.  Refreshments will be served at the break.  Guests are always welcome.

Our February program was presented by Gary Hembree, N7IR, on the history of ham radio on the island of Curacao in the Netherlands Antilles.  Gary has operated from PJ2T in the last two CQWW CW contests and has joined the Consortium that maintains that award winning station on Curacao.

We were treated to a talk that went beyond the typical list of antennas and operators to cover some geology lessons about the island that most of us had never considered such as the difference between volcanic islands and those like Curacao created by tectonic plate pressure.  Gary also taught us about the island's role in the movement of oil and petroleum products by ship from Venezuela to the world.

The biggest challenge facing PJ2T, Gary explained, is tower maintenance where the salt water environment has been literally eating the towers over time and will force replacement in the very near future.

From DX Heat


President's Message

Feb. Meeting Recap

There are times when keeping a ham radio station functioning can be extremely frustrating.  I have been using WSJT-X for over a year now on JT65 and JT9 modes with great success.  For those of you who have not yet tried this mode, you are missing where most ham activity is now taking place.  Any time 20m seems dead, just tune to 14076 on USB and open your receiver passband to 3 or 4 KHz.  You will be amazed at all the beeps and tones from stations across the world, most running under 30 watts.  The frustration came a few months ago when I moved to the latest version (1.7) of Joe Taylor's ground breaking WSJT-X program.  My transmissions would stop a few seconds after the radio was keyed.  Going back to the previous version, my radio worked normally -- what to do after my cursing stopped?  I put out notes on a few reflectors and got quick responses.  It seems the new program version has more commands when the transmitter is keyed than my Elecraft K3 could handle.  By making one change to a checkbox in the WSJT-X set-up, my problem was solved. 

So, I had it working perfectly again and then did not use the program for a few weeks.  Then, when I tried to call a station on JT65, I could not get any power out.  I could hear the signal being generated, it just was not going any place.  After spending hours one night trying (unsuccessfully) to fix the problem, I was ready to tear my hair out knowing that it must be some simple setting.  The next morning, I was dealing with some microphone input settings for the Safford remote and realized there was also a "LINE IN" option for the audio on the K3.  That is the setting needed for JT65 the way I operate.  When I checked the setting, it was looking for a microphone, not LINE IN.  Duh!  I don't know how or when it got changed, but once I reset it, voilà, back in business on JT65.

I have started to take screen shots of program settings, just in case I need to see what might have changed that stops my radio from working.  The digital modes in particular make that a good practice.


Lee, KY7M

Welcome to the Central Arizona DX Association

Announced DX Operations
by NG3K

CADXA Repeater and Net
Join us on the K5VT repeater to announce and discuss DX.  In addition, there is a Thursday night net at 7:00 pm except on CADXA meeting nights.  The repeater and net are open to all DX enthusiasts.   
147.32 MHz (+) no PL tone

Courtesy of The Daily DX™

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